I dunno what to say other than I think Alloy USA lost its way when Ron Stobaugh left them in 2008. I'd figure out a way to return them for a credit and get something else. Revolution Gear & Axle will be releasing their TJ axle shafts in a few months if you can wait that long. Their axles will be made in the same US foundry (Foote) that the Superior Axle Evolution axle shafts were made in and the same guy (Mac McMillan) behind them is the same guy who made Superior Axle what they were before economic conditions sank their boat.
Don't look for specifc axle shafts at http://www.revolutiongear.com/
yet but they'll be there before much longer.